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How much Realtime CPU do you use?
Posted: Sun Apr 27, 2014 12:54 pm
by bluebell
Qjackctl shows the amount of CPU that's used in realtime scheduling. I don't know if that's the correct description. Anyone who has a better one?
When I use Rosegarden I stay below 20%. But my recent project (Qtractor with many CPU-hungry plugins) uses 70% on my Core i5.
Anyone who can beat that?
Re: How much Realtime CPU do you use?
Posted: Mon Apr 28, 2014 6:02 pm
by Eino
I have old hardware, and i use LMMS with a midi Keyboard.
I rarely go above 50% but it depends upon how many instruments is in LMMS when recording.
This one went above 50% recording the last instrument.
https://soundcloud.com/eino1953/going-h ... hero-theme
Re: How much Realtime CPU do you use?
Posted: Mon Apr 28, 2014 7:07 pm
by autostatic
Fons Adriaensen wrote:It is the total time taken by all clients to finish
the processing for one period divided by the period
time. The actual value returned by Jack and shown
in qjackctl and ardour is the maximum of this ratio
over the recent past.
This means that if a jack client sleeps for half a
period time in its process callback (it shouldn't
do that of course) that will show up as 50% in the
'DSP load', even if it doesn't take any real CPU.
Source:
http://linuxaudio.org/mailarchive/lau/2009/10/11/160532
So it's unrelated to CPU load.
I have projects which easily max out on DSP load even on an i7. It's just a matter of decreasing the number of frames per period
Re: How much Realtime CPU do you use?
Posted: Tue May 06, 2014 7:19 pm
by bazsound
I tend to keep around 50% as above that it becomes unstable an x runs start to occur. which is odd. Ive never managed to reach above 70% without terrible x runs occurring
Im on an old athlond 64 dual core 2ghz